Home / 2,399.21-3,310.67-1,770.08

Finding the Fourth Proportional to 2,399.21, 3,310.67 and 1,770.08

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Solution

The fourth proportional to 2,399.21, 3,310.67 and 1,770.08 is: 2,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.21 : 3,310.67 = 1,770.08 : x
  2. Step 2: Convert to fraction form
    2,399.21/3,310.67 = 1,770.08/x
  3. Step 3: Cross multiply
    2,399.21x = 3,310.67 × 1,770.08
  4. Step 4: Simplify right side
    2,399.21x = 5,860,138.63
  5. Step 5: Solve for x
    x = 5,860,138.63/2,399.21
  6. Step 6: Final answer
    x = 2,442.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.